121121012122212 has 12 divisors (see below), whose sum is σ = 282615694951856. Its totient is φ = 40373670707400.

The previous prime is 121121012122171. The next prime is 121121012122213. The reversal of 121121012122212 is 212221210121121.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (121121012122213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5046708838414 + ... + 5046708838437.

Almost surely, 2^{121121012122212} is an apocalyptic number.

121121012122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121121012122212 is an abundant number, since it is smaller than the sum of its proper divisors (161494682829644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121121012122212 is a wasteful number, since it uses less digits than its factorization.

121121012122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093417676858 (or 10093417676856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121121012122212 its reverse (212221210121121), we get a palindrome (333342222243333).

The spelling of 121121012122212 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twelve million, one hundred twenty-two thousand, two hundred twelve".